[INFO] fetching crate fcplug 0.4.3...
[INFO] checking fcplug-0.4.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate fcplug 0.4.3 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate fcplug 0.4.3 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fcplug 0.4.3
[INFO] finished tweaking crates.io crate fcplug 0.4.3
[INFO] tweaked toml for crates.io crate fcplug 0.4.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 98 packages
[INFO] [stderr]       Adding integer-encoding v3.0.4 (latest: v4.0.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding nu-ansi-term v0.46.0 (latest: v0.50.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding pilota v0.7.0 (latest: v0.10.0)
[INFO] [stderr]       Adding quick-error v1.2.3 (latest: v2.0.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-appender v0.2.3
[INFO] [stderr]   Downloaded defer-lite v1.0.0
[INFO] [stderr]   Downloaded integer-encoding v3.0.4
[INFO] [stderr]   Downloaded faststr v0.2.18
[INFO] [stderr]   Downloaded linkedbytes v0.1.8
[INFO] [stderr]   Downloaded pilota v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a3c5b54cfcdae56efaab9ca6bd6b6a6b17252385c3c8caf658b8cd581b8f32d
[INFO] running `Command { std: "docker" "start" "-a" "0a3c5b54cfcdae56efaab9ca6bd6b6a6b17252385c3c8caf658b8cd581b8f32d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a3c5b54cfcdae56efaab9ca6bd6b6a6b17252385c3c8caf658b8cd581b8f32d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a3c5b54cfcdae56efaab9ca6bd6b6a6b17252385c3c8caf658b8cd581b8f32d", kill_on_drop: false }`
[INFO] [stdout] 0a3c5b54cfcdae56efaab9ca6bd6b6a6b17252385c3c8caf658b8cd581b8f32d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ead1caba189e476d78a9e9ad2449bad7484447591845e83e564adb4ea4955e6f
[INFO] running `Command { std: "docker" "start" "-a" "ead1caba189e476d78a9e9ad2449bad7484447591845e83e564adb4ea4955e6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking simdutf8 v0.1.4
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling async-recursion v1.1.0
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking defer-lite v1.0.0
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking faststr v0.2.18
[INFO] [stderr]     Checking tracing-appender v0.2.3
[INFO] [stderr]     Checking integer-encoding v3.0.4
[INFO] [stderr]     Checking linkedbytes v0.1.8
[INFO] [stderr]     Checking proptest v1.4.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking pilota v0.7.0
[INFO] [stderr]     Checking fcplug v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.58s
[INFO] running `Command { std: "docker" "inspect" "ead1caba189e476d78a9e9ad2449bad7484447591845e83e564adb4ea4955e6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ead1caba189e476d78a9e9ad2449bad7484447591845e83e564adb4ea4955e6f", kill_on_drop: false }`
[INFO] [stdout] ead1caba189e476d78a9e9ad2449bad7484447591845e83e564adb4ea4955e6f